From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6312B3C2BB9 for ; Fri, 4 Sep 2026 16:52:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788540771; cv=none; b=pyKty9FgZne8EvjN2lpzlmiwy5VMP/JZt+SKdTs9Qd4YVO6gqk3XUsf69P8iib2DJVmCB6DtfCZGEljTyBjet7TNcpXzprcXAh61Ov7dZQTKjoLsTsqYd2LeVKeWOsCuNNvSXgrcCAFJWb+a0hRXjFwiL/XQV9DKOIHcsRaqmWY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788540771; c=relaxed/simple; bh=Ct8blx0viIUAFsb5FstOO/5ZfuTOSOfdZskwq1qXGNM=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ChIrXiu1XFNK80iaHRveE4gw79/98Z4R7n1LlfGPy717zDd2xdw9WpvO2r8Hc5gwGK8IZrxIOnDxcazJh8HYBjExS1ZEMCZeg5f0TrAuILw6ftSedt5buNu5HkYwY9X1t1fkW4LSough1LDsAAXIQ6t7aF+rfkBpOOnPzF1Tbcc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SDpulfER; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="SDpulfER" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 202A81F00A3D; Fri, 4 Sep 2026 16:52:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788540768; bh=hU2GR8YBlHNF+zEpvooPsxII/MMK0WZlna2bHIpVzgI=; h=From:To:Cc:Subject:Date:Reply-To; b=SDpulfERn6NGtA9yZ6ZPeMgXmA2JL3Oy7w6FL9aQfAk3xcuKcpbAwRDzpCryHQt2e 6+WyOdtYexnVZUhVV8HhpkBXEw68dB1b/XDHdui2rSY1zTNfKrGww6AGpMsflUbQV8 3bWKJ2XwnY/oUrl+0tH4xw0MZHp5uVIrNpPnolN8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80874: arm64: dts: renesas: ironhide: Describe inline ECC carveouts Date: Fri, 4 Sep 2026 18:46:41 +0200 Message-ID: <2026090435-CVE-2026-80874-c1d2@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2485; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=e0VDXohmJGycFwxeh1E8mF3ViQaAgLHEFyO0cozWcWk=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmzvr7+f7vImqXA7072HIPUaWn/qiatuyv1dkvfgu16j 9vsXXf3dcSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBE4ssZZjJuXnd3k5vhdgmz 7W85VqZ29s1WLWJYsO9+16+9/94dj992NMdgsbAOz7o/4gA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: arm64: dts: renesas: ironhide: Describe inline ECC carveouts The DBSC5 DRAM controller protects DRAM content using inline ECC. The inline ECC utilizes areas of DRAM for its operation, which are in the DRAM address range, but must not be accessed or modified. Describe the inline ECC carveout areas used by the DBSC5 controller on this hardware as reserved-memory, which must not be accessed. Include DRAM areas which are unprotected by ECC as well, those are parts of the DRAM which directly precede the ECC carveout. In case of high DRAM utilization, unless the inline ECC carveouts are properly reserved, Linux may use and corrupt the memory used by the DBSC5 DRAM controller for inline ECC, which would lead to the system becoming unstable. The Linux kernel CVE team has assigned CVE-2026-80874 to this issue. Affected and fixed versions =========================== Issue introduced in 6.19 with commit ad142a4ef7106326bbf5c67eb39f21ef77fe8be3 and fixed in 7.1.5 with commit 7cc51bb053f6b4bb17db4e10afcef3147566cb47 Issue introduced in 6.19 with commit ad142a4ef7106326bbf5c67eb39f21ef77fe8be3 and fixed in 7.2 with commit 6fa6ee724d8dadf392139e242ac936b5da730c4b Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-80874 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: arch/arm64/boot/dts/renesas/r8a78000-ironhide.dts Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/7cc51bb053f6b4bb17db4e10afcef3147566cb47 https://git.kernel.org/stable/c/6fa6ee724d8dadf392139e242ac936b5da730c4b